A 65-year-old woman arrived at the ER with textbook signs of a heart attack — but the real trigger turned out to be joy, not a blocked artery.
Source: [Live Science](https://www.livescience.com/health/heart-circulation/diagnostic-dilemma-a-joyful-wedding-nearly-broke-a-womans-heart-in-a-rare-case-of-happy-heart-syndrome)